Steam-trap



(No man.)

E. L. PERRY. STBAM'TRA?. No. 520,077. Patented May 22, 1894.

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UNITED STATES PATENT OFFICE.

EDWARD L. PERRY, OE PATERSON, NEW JERSEY.

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 520,077, dated May 22, 1894.

Application tied february 8,1894. semi No. 499,523. (No moda To all whom it may concern:

Beitknown that I, EDWARD L. PERRY, a citizen of the United States, residing at Paterson, in the county of Passaic and State of New .I ersey, haveinvented certain new and useful Improvements in Steam-Traps; and I do hereby.

declare that the following is afull, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters of reference marked thereon.

The present invention has relation to steamtraps for boilers and the object thereof is to provide a simple device that will effectually trap the steam and carryotf the condensation thereof, and consists of a device constructed substantially as shown in the drawings and hereinafter described and claimed.

Figure l of the drawings represents my improved steam-trap showing it connected to the boiler through the usual steam heating coil and discharge or exhaust pipe, Fig. 2 a detail sectional view on an enlarged scale of the trap and branch tubes conneetingit with the exhaust or discharge pipe.

In the accompanying drawings A represents the boiler and B the usual heating coil connecting therewith and provided with the usual feed valve a., and to the coil is connected the exhaust or discharge pipe C, all of which are the usual construction. The pipe C is provided with a suitable valve h to control the direction of the steam and water through it. To the pipe C is connected the steamtrap D through the medium of branch tubes E F and suitable couplings.

When the valve ct is open to form a communication between the boiler A and heating coil B, the steam will pass therefrom into the coil where more or less condensation takes place, which condensed steam is allowed .to pass out through the pipe C when the valve l) is open.

After the first condensation of the steam has been removed from the heating coil and the trap filled with water from the condensed steam, the valve b in the pipe C is closed and all further condensation is compelled to pass through the passage of the tube E, into trap, and thence through tube F.

When the trap is once filled with water from the condensed steam, it remains filled, as the escape of the condensed steam through the tube F does not exceed the amount taken up and passed through the tube E into the trap, consequently the passage and discharge of the condensed steam through the two tubes are equal and uniform.

To insure the perfect operating of the trap, the passages in the branch tubes are contracted to such an extent in their diameter as to prevent the escape of steam with the water but sufficiently large in diameter-.to take up the steam as fast as it is condensed.

The valve located asit is between the j uncture of the two branch tubes with the exhaust or discharge-pipe, is considered of importance in rendering the device practical in its opera.4 tion in quickly emptying the contents of the tank or heater. This is essential Where great condensation takes place as in steam jackets, vacuum-pans, and the like.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a steam-trap, an exhaust or discharge pipe and a suitable valve located therein, branch-tubes havin g contracted openings and communicating with the exhaust or discharge pipe at a point upon each side of the valve, and a pipe for the condensed steam which forms the trap proper, said pipe communicatingv with the branch tubes, substantially as and for the purpose set forth.

In testimony thatI claim the above I have hereunto subscribed my name in the presence of two witnesses.

the

EDWARD L. PERRY.

Witnesses:

CRAs. J. WILLIAMSON, WM. H. DE LACY. 

